Since the early 1970s, Dave MacPherson has aggressively attacked the pretribulation rapture by attributing its origin to Margaret MacDonald, whom MacPherson considers to be occult influenced. He claims J.N. Darby derived the pretribulation rapture from her and this was done secretly, lest the true origin of the rapture be discovered. MacPherson develops this idea in his books The Incredible Cover-Up and The Great Rapture Hoax...